Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14855#discussion_r76690858
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala ---
@@ -791,11 +791,22 @@ case class ShowCreateTableCommand(table:
TableIdentifier) extends RunnableComman
}
}
+ // These table properties should not be included in the output statement
of SHOW CREATE TABLE
+ val excludedTableProperties = Set(
+ // The following are hive-generated statistics fields
+ "COLUMN_STATS_ACCURATE",
+ "numFiles",
+ "numPartitions",
+ "numRows",
+ "rawDataSize",
+ "totalSize"
+ )
+
private def showHiveTableProperties(metadata: CatalogTable, builder:
StringBuilder): Unit = {
if (metadata.properties.nonEmpty) {
val filteredProps = metadata.properties.filterNot {
- // Skips "EXTERNAL" property for external tables
- case (key, _) => key == "EXTERNAL" && metadata.tableType ==
EXTERNAL
+ // Skips all the stats info (See the JIRA: HIVE-13792)
--- End diff --
Not sure whether I got your point. Are you saying `getTableOption` in
`HiveExternalCatalog`?
Initially, I had the same design like you. Later, I realized we still
use/display them in the other DDL statements, for example, `DESCRIBE EXTENDED
TABLE`.
Let me know if my understanding is wrong. Thanks!
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